Normal flora in skin, GI, GU, and respiratory tract help digest, create, and absorb chemicals that we need. They also inhibit growth of more invasive bacteria

2nd line of defense

Inflammatory Response

3rd line of defense

Specific Immunity

Functions of Inflammatory Response

1. Marshals resources within the vascular structure into surrounding affected tissue by releasing cells and fluids that isolate, destroy, and remove invaders. 2. It also promotes healing as it prepares the affected tissue for healing and repair.